
/**
 * Copyright 2009 cestum.org
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
package org.waveprotocol.wave.model.document.operation.algorithm.transformer.tracker {
import org.waveprotocol.wave.model.document.operation.algorithm.transformer.RelativePosition;
  /**
   * A tracker that tracks the positions of two cursors relative to each other.
   */
  public final class PositionTracker {

   var position:int= 0;

    /**
     * @return A RelativePosition - client's position relative to the server's position.
     */
    public function getClientPosition():RelativePosition {
    	return new ClientPosTracker(this);
    }

    /**
     * @return A RelativePosition -  server's position relative to  the client's position.
     */
    public function getServerPosition():RelativePosition {
    	return new ServerPosTracker(this);
    }

  }
}